Summary
- Origins
- Long head: Infraglenoid tubercle of the 🦴 Scapula
- Lateral head: Posterior humerus, above the radial groove
- Medial head: Posterior humerus, below the radial groove
- Lateral head: Posterior humerus, above the radial groove
- Insertions
- 📍 Olecranon process of the ulna
- Actions
- Extension of the forearm at the elbow
- Long head: assists in extension and adduction of the arm at the shoulder
- Stabilization of the shoulder joint
- Long head: assists in extension and adduction of the arm at the shoulder
Illustrations
- Red: Long head
- Yellow: Lateral head
- Green: Medial head
Examples
Triceps Tendon
Translations
- Russian
- трёхглавая мышца плеча
- French
- triceps brachial
References
- Wikipedia
- 📕 Gf, 172-175.
- Hale And Coyle 1977, 80, 112, 122, 138, 140, 144, 146, 148-149, 150-151, 152, 182, 253, 254, 255, 256.
Related Muscles
💪 Anconeus The triceps brachii and anconeus are muscles that work together to straighten the elbow.
- The triceps is the bigger muscle with three parts and does most of the work to extend the arm.
- The anconeus is a smaller helper muscle near the elbow. It assists the triceps and helps stabilize the joint during movement.
They are closely connected and often work as a team for elbow extension and stability.